add gradio demo and colab link

added a link to gradio demo for fine-tuned SD models and colab link

README.md

@@ -28,6 +28,12 @@ image = pipe(prompt).images[0]
 image.save("./magical_princess.png")
 ```
 
+# Gradio & Colab
+
+We also support a [Gradio](https://github.com/gradio-app/gradio) Web UI and Colab with Diffusers to run fine-tuned Stable Diffusion models:
+[![Open In Spaces](https://camo.githubusercontent.com/00380c35e60d6b04be65d3d94a58332be5cc93779f630bcdfc18ab9a3a7d3388/68747470733a2f2f696d672e736869656c64732e696f2f62616467652f25463025394625413425393725323048756767696e67253230466163652d5370616365732d626c7565)](https://huggingface.co/spaces/anzorq/finetuned_diffusion)
+[![Open In Colab](https://colab.research.google.com/assets/colab-badge.svg)](https://colab.research.google.com/drive/1j5YvfMZoGdDGdj3O3xRU1m4ujKYsElZO?usp=sharing)
+
 ![img](https://huggingface.co/nitrosocke/Arcane-Diffusion/resolve/main/magical_princess.png)
 
 ### Sample images from v3: